/*
 * Copyright 2018 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef SkSGClipEffect_DEFINED
#define SkSGClipEffect_DEFINED

#include "modules/sksg/include/SkSGEffectNode.h"

namespace sksg {
class GeometryNode;

/* *
 * Concrete Effect node, applying a clip to its descendants.
 *
 */
class ClipEffect final : public EffectNode {
public:
    static sk_sp<ClipEffect> Make(sk_sp<RenderNode> child, sk_sp<GeometryNode> clip, bool aa = false,
        bool force_clip = false)
    {
        return (child && clip) ? sk_sp<ClipEffect>(new ClipEffect(std::move(child), std::move(clip), aa, force_clip)) :
                                 nullptr;
    }

    ~ClipEffect() override;

protected:
    ClipEffect(sk_sp<RenderNode>, sk_sp<GeometryNode>, bool aa, bool force_clip);

    void onRender(SkCanvas *, const RenderContext *) const override;
    const RenderNode *onNodeAt(const SkPoint &) const override;

    SkRect onRevalidate(InvalidationController *, const SkMatrix &) override;

private:
    const sk_sp<GeometryNode> fClipNode;
    const bool fAntiAlias, fForceClip;

    bool fNoop = false;

    using INHERITED = EffectNode;
};
} // namespace sksg

#endif // SkSGClipEffect_DEFINED
